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CDN Forces Reactor Online Against Safety Regulations

Socguy writes "The Canadian government has passed legislation that will reopen an Ontario nuclear reactor that produces most of the world's supply of critical medical isotopes, even though the site has been shut down for safety maintenance. Witnesses and experts were called in to the House to face questions about safety concerns and all parties eventually voiced support for the bill, which would effectively suspend CNSC's oversight role for 120 days. The Chalk River reactor ceased operating on Nov. 18. Pressure on the government to restart operations began to build after delays in the shutdown of the government-run site, which generates two-thirds of the world's radioisotopes, began to cause a critical shortage of radioisotopes."

23 of 338 comments (clear)

  1. I was going to ask... by Anonymous Coward · · Score: 5, Insightful

    ...why they couldn't have stockpiled their products before the shutdown, but then realized that the half-lives for the sort of thing they're offering are probably measured in days or hours, right?

    1. Re:I was going to ask... by jacquesm · · Score: 2, Insightful

      You'd have to filter out the 'dead' (fissioned) material because otherwise you'd be running a very real risk of giving a patient a wrong dose. Most of this stuff is done on a milligrams / bodyweight basis, stockpiling it for any length of time would throw off the dosage schemes in a terrible way.

    2. Re:I was going to ask... by C_L_Lk · · Score: 5, Insightful

      Actually it was set to be shut down for exactly a week and to be brought back online. Unfortunately when it was brought offline and the inspection began, it was found that backup pumps for the cooling system, which Chalk River had believed to be optional from documentation they had, were found to be non-existent. At that point the safety commission told them they couldn't restart the reactors until all that work was completed and the backup systems were tested and online. THAT process takes much more than a week - it was estimated it could take until the end of January to engineer all the production changes, obtain all the items needed, and implement the changes.

      Considering the reactor that produces these radio isotopes is extremely critical to nuclear medicine around the globe, the government felt that delay was unacceptable and the extremely minor risk (as the reactor has operated many years just as it is without any incidents) was acceptable -- thus they said "Damn the backup pumps! Run the reactors! (just for 180 days)" -- in my opinion - the right choice. In the ensuing 180 days the engineering work can be completed, the pump systems can be obtained, and the reactors can be prepared for another week-long shutdown during which "short-time stockpiled isotopes" can be used (remember, even if it reaches its half-life, it's still working - and even after another half life it's still working - just need 4 times as much material to get the same amount of decay).

  2. OK, a show of hands... by Kozz · · Score: 2, Insightful

    ... how many people were abso-freaking-lutely SHOCKED to learn that there was no "backup"? There's a WTF if there ever was one.

    --
    I only post comments when someone on the internet is wrong.
  3. Got to love it... by Fallen+Kell · · Score: 1, Insightful

    ... when business takes priority to safety especially at a nuclear reactor. Sounds to me like there is a need for more alternate sites to provide these radio-isotopes to the rest of the world. I bet the places that produce the other 1/3 are making a fortune right now due to supply/demand.

    --
    We were all warned a long time ago that MS products sucked, remember the Magic 8 Ball said, "Outlook not so good"
    1. Re:Got to love it... by ShieldW0lf · · Score: 3, Insightful

      This isn't business taking priority to safety. This is the old demographic overruling the young demographic.

      --
      -1 Uncomfortable Truth
    2. Re:Got to love it... by timeOday · · Score: 5, Insightful

      .. when business takes priority to safety especially at a nuclear reactor.
      You're missing the point. The nuclear materials they produce there are used for medical diagnoses. Ceasing to give people medical care may very well outweigh the risks of keeping the reactor open.
  4. What a sound idea.. by cephalien · · Score: 3, Insightful

    Even if nothing goes wrong, they've set a dangerous precedent of basically telling their watchdog group "Well, we'll let you do your thing, but even though we know little about the engineering behind a reactor, we are also going to basically feel free to disregard you and tell you to suck it if we don't like what you say."

    A spectacular idea. Why aren't we, maybe, wondering how we ended up with only ONE reactor that can produce this stuff in the first place?

    --
    If firefighters fight fire, and crimefighters fight crime, what do freedom fighters fight? - George Carlin
    1. Re:What a sound idea.. by Iobor · · Score: 5, Insightful

      It's OK, the watchdogs are also, some of them, chosen for their lack of knowledge of nuclear engineering.

      Also, an isotope production reactor doesn't produce electricity, so it doesn't compete with natural gas-fired electricity producers. With natural gas at $4 million per uranium-tonne-equivalent and the real thing at only $0.24 million, and hidden taxes on the $4 million, an electricity production reactor has enemies in government that an isotope production one does not.

    2. Re:What a sound idea.. by Adambomb · · Score: 2, Insightful

      I do not know how may times it needs to be said in the comments before people notice it, but this is NOT a power generating site. The site produces isotopes and even in the event of critical failure, you still will not see anything of meltdown proportions. Even if it was, keep in mind that, since Chernobyl, safety procedures have become VERY precise and robust.

      That which is unknown is definitely scary though. It's a choice between how many definitely die due to lack of medical radioisotopes, versus how many might be affected by a reactor failure.

      I'm just glad i'm not the one making the decision, because you know the perception of the choice only depends on the results, not the validity of the reasoning behind the choice prior to results.

      --
      Ice Cream has no bones.
    3. Re:What a sound idea.. by ifdef · · Score: 2, Insightful

      I've worked on the design of CANDU nuclear power plants, and about 15 years ago I did a little bit of work relating to the Ignalina RBMK reactor (just translating a document into English, not any design work). Ignalina is the same design as Chernobyl, only 50% larger.

      I was *shocked* by some things I observed there. Yes, to get in for a tour, I had to get all sorts of permissions, go past armed guards who checked my passport, etc. BUT, on the way out, I asked my guide why I didn't have to go through the radiation monitors. He explained that it was because I was a guest, and they didn't want to be disrespectful. I tried to tell him that it had nothing to do with respect or disrespect, and that in Canada, if the Queen herself had visited in the potentially radioactive area of a nuclear power plant, she would have walked through the radiation monitors on the way out. He didn't seem to get it.

      I heard a number of stories about Chernobyl as well, from an academic working in the nuclear field there. People were not told ANYTHING about what had happened. The day after the accident was some sort of holiday, and people were gathering in the streets, not knowing anything about the fallout that was even then coming down. This person ordered his own family to stay indoors for their own safety, even over their protests that not joining the crowd would be considered unpatriotic.

      He also told of the story he heard about the guard at Chernobyl who was standing right in the direct line of radiation from the plant. This guard was told "Comrade, at least stand behind this wall, you can still guard the doorway from there", and the guard answered "I was ordered to stand right here, so I will stand right here."

      But to get back to the question of RBMK design.

      One of the principles of CANDU design is redundancy. The control computer should always be able to control the plant safely. The control computers are duplicated, and if one fails, the other one takes over. If both computers fail, the plant automatically shuts down, as long as things like gravity keep working. Now, in the design of the safety systems, the emergency shutdown systems, you start with the ASSUMPTION that not only are the control computers working, but they are hostile and doing the exact opposite of what they are supposed to do, trying to increase power, keeping valves open when they should be shut, trying to shut valves that should be open, etc. The shutdown system has to be able to guarantee that the reactor is shut down safely even in those conditions. Then, there is an additional shutdown system, SDS2. SDS2 is designed by different people than SDS1 (if you've worked on one, you're not allowed to work on the other), uses equipment from different manufacturers, works on different physical principles, is located in a physically different area of the reactor, has its control equipment in a physically different area of the plant. Both systems are designed (as is the regular control system) to shut down the reactor immediately if they should lose power (e.g. power is used to hold UP control rods that shut down the reactor when they drop, power is used to hold CLOSED a valve that injects a neutron poison into the core when it opens). But even so, the equipment is powered by separate power systems. Anybody who does any maintenance on SDS1 is prohibited from doing any maintenance on SDS2, and vice versa. Everything is done to try to eliminate any common mode of failure. And then, of course, if the regular control system fails and both shutdown systems also fail, the reactor is designed with a negative power coefficient and is in a containment structure, which is ALSO designed to keep everything relatively safe even then. Really expensive, but safe. (Actually, even SDS2 is expensive: if it fires, the reactor can't be restarted for about two days, and the utility has lost two days of revenue.)

      As far as I remember, the RBMK had only one emergency shutdown system, and it depended on signals it gets from the regular co

  5. your wife's water just broke by circletimessquare · · Score: 4, Insightful

    you rush her into the car, strap on the seatbelt, and start heading towards the hospital. on the way there, the "check engine" maintenance light comes on

    do you:

    1. stop the car, and call for an ambulance
    2. drive on, ignoring the light

    i think we all know what the obvious answer is

    folks: people could die without these radioisotopes. additionally, the safety issue is probably something extremely circumspect

    please, no more scolding lectures about safety first, the canadian government did the right thing

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
    1. Re:your wife's water just broke by Turbowaffle · · Score: 5, Insightful

      If your engine contains a nuclear reactor, then I'd say yes, stop the car.

    2. Re:your wife's water just broke by vux984 · · Score: 4, Insightful

      Right, you need to make an -informed- risk assessment. Are you?

      On the other hand, if a problem occurs at the plant best case is that the plant is shut down for much longer. Worse case is obvious and... unpleasant.

      I've heard at least one person here report that at least some of the 'safety problems' amount to missing signage, and stuff like that.

      People need these isotopes to save their lives, should we really keep the facility shutdown because the first aid kit doesn't have its full stock of bandages, a few water pipes aren't labelled as hot or cold, an inspection of the fire extinguisher in the cafeteria is overdue? I think not.

      What if one of the generators is slightly overdue for maintenance, but the maintenance schedule is known to be extremely aggressive. (e.g. like doing on an "oil change" every 1500mi, even though the engine and the oil are spec'd for 3000mi. its a nucear reactor and all, and you want to be safe.) Is it really worth shutting the facility down if we're at 1600mi, given that people certainly lose their lives if you shut it down while its extremely unlikely to fail if you continue running it? And if it does FAIL, you've got a backup, and a contingency if that fails?

      Point is, we need more information about the actual safety concerns and real risks before we applaud or condemn this move.

  6. It's not as terrifying as it sounds by WoTG · · Score: 5, Insightful

    Personally, I have to agree with the forced reopening of the reactor. It sounds terrifying, and it's a disgrace that we're in this situation, but the risk is very minimal. The story has been playing in the media here in Canada for a few days now.

    This is not a large-scale power generating reactor. It's a relatively small "research" reactor and it is more or less middle of nowhere.

    From what I recall from the news stories, the current hold up is the backup power to the second pump is offline. The backup power to the first pump is online, and only one pump needs to be operating at any one time. The truly disgraceful thing is that the plant has been improperly operating without any proper backup power lines for months and months. The current unexpectedly long shut-down occurred because the improper backup systems were discovered by the regulators during a shorter planned down time.

    On the flip side, critical medical scans are being canceled by the thousands across North and South America. You can't point at any specific case, but given the large number of procedures being delayed, I'd bet that someone out there is going to die on a daily basis because a scan is postponed.

  7. Re:How did we get to this? by Anonymous Coward · · Score: 1, Insightful

    How does this one site belonging to a single country generate two-thirds of the worlds radioisotopes? How is this possible?

    These things happen.

    Who are the other [major] suppliers? The world has so several nuclear powers and I wonder what these powers are doing.

    Through Googling earlier today I saw there was a facility in the Netherlands (link has information about the moly and technetium cows they ship to hospitals.) I also saw mention elsewhere that Australia wasn't affected by the isotope shortage as they get theirs from South Africa. I expect there may be other facilities around the world producing these isotopes in limited quantities but none on the scale of the Canadian reactor.

    I expect that these facilities and any others are doing what they can to help mitigate the shortage but I expect that they're limited in what they can do. I doubt one can just suddenly double or triple one's production of radioisotopes if one isn't set up to do so. You'd require more molybdenum, more packaging, more work to package, more paperwork, more personnel. You'd have to coordinate shipping outside your normal channels of distribution, etc.

    On the other hand, it points to ineptness of successive Canadian governments that have failed to install better and more efficient nuclear systems.

    Likely true. I saw that there is another reactor being built (presumably for this purpose) in Canada that is behind schedule. I didn't look into this much as I was only looking for information about the isotopes themselves. The political reasons why this particular reactor isn't completed were not what I was interested in.
  8. This is why I'm not a politician by Minupla · · Score: 2, Insightful

    Gotta love it, behind door number 1:
    Leave the reactor closed, definitely kill people.

    Behind door number 2: Violate safety regs on a reactor, possibly kill people.

    Politics is definitely a game more fun to play from the bleachers. For what it's worth, I live in the country and I agree this is the best of a bad situation.

    Min

    --
    On the whole, I find that I prefer Slashdot posts to twitter ones because I don't get limited to 140 chars before
  9. Re:Radio 1 report. by Your.Master · · Score: 2, Insightful

    24 hours in a day / 6 hours in a half-life = 4 half-lifes in a day.

    4 months @ approx. 30 days / month * 4 half-lifes per day = 480 half-lifes.

    So, just to supply the one 6-hour period 6 months later, you would need 2^480 times as much material as you would need producing it right then. That's 3.1 × 10^144. The number of atoms in the Universe is often estimated at between 4 × 10^78 and 6 × 10^79. Conservatively, that's 5.2 × 10^64 times more atoms than are contained in the entire Universe.

    Of course, you also need enough for the time period before, and the time period before that. Each time you need half as much. This amounts to a summation of 1 + 1/2 + 1/4 + 1/8 ..., which isn't quite an infinite summation but close enough for our rounding. The infinite summation is 2 and the real summation is just under 2 by an incredibly small fraction. That means you need twice as much as the number I calculated.

    Now, that said, others mentioned that it's probably "stored" and "shipped" as Mo-99, which has 66 hours' of half-life. This, of course, changes everything. In that case you only have to deal with about 44 half-lifes, or 1.4 × 10^13. Which is a hell of a lot less. To get one gram of material to ship at the end of this process (there will be less than a gram on arrival at the destination!) you only need 445000 Kg, or 445 tonnes, or a million pounds. Seriously, a million lbs. For one gram at the end. If you want one gram every 66 hours, you need two million lbs of the stuff. The compared to the fact that at constant rate production, you really only need 44 grams.

    All of this math was brought to you so that I could point out that the gp was hilarious and you totally got whooshed. That, or I totally got whooshed by your dry irony trap. But I'm pretty sure it is you who are the whooshed.

  10. bad analogy by m2943 · · Score: 2, Insightful

    folks: people could die without these radioisotopes

    And people could die in a nuclear accident.

    i think we all know what the obvious answer is

    That's because you're no worse off calling the ambulance from your broken down car on the highway as you would be from home.

    please, no more scolding lectures about safety first, the canadian government did the right thing

    No, they did not, because this action will make it even harder to convince communities to permit nuclear facilities to be located near them.

  11. Bah! by foreverdisillusioned · · Score: 5, Insightful

    And you only say that because you've been brainwashed into thinking that nuclear power is more dangerous than fossil fuel power.

    Stupid Russians aside (and trust me, Chernobyl wasn't an accident--it was the direct, foreseeable result of extreme stupidity. Quick analogy: Its crappy design made it the Pinto of nuclear reactors, and then the operators in charge basically went around slamming on their brakes randomly until they got rear-ended and the fucking thing blew up), pollution from fossil fuels (including--*gasp!*--radioactive pollution) outweighs pollution from nuclear power by many orders of magnitudes. People die every day due to the direct effects of using fossil fuels (and this isn't a snide criticism of Iraq, though that argument could certainly be made as well.) They explode. And cause cancer and respiratory illness. And then there's the whole greenhouse gas thing. Three mile island, on the other hand, dumped enough radiation into the area that they calculated there is a 50% chance that one extra person died from cancer. Eventually. Years later.

    You see, what people fail to grasp is how utterly surrounded they are by radiation. Have you ever watched television on anything other than a flat screen? If so, you've been staring directly into a cathode ray tube. Wanna know what a CRT really is? A particle accelerator. It's beaming beta radiation (and some side-effect X-Rays as well) directly into your eyes. They actually have to add lead to the glass in TV sets to prevent the radiation from reaching harmful levels. I am not making this shit up; every day, millions (if not billions) of knee-jerk anti-nuclear hippies sit around for hours and stare directly into a particle accelerator. (Yes, you can argue that the power levels and leaded glass makes it a pretty safe activity, but that's PRECISELY my point. Just because radiation is involved doesn't mean something is inherently dangerous. Radiation is a danger like high current electricity or poisonous chemicals are a danger. We're surrounded by all three, all of the time, yet sane design renders these things fairly safe.)

    And, of course, almost everyone will (at least a couple times in their lives) suffer a radiation burn--more commonly known as a "sunburn". Many people suffer these radiation burns repeatedly, even though they (like all radiation exposures) cause cancer, and even though they're fairly trivial to avoid.

    I'm not arguing that we should have a cavalier attitude towards nuclear power--just a little sanity and appropriateness. I don't know the specifics in this case, but I wouldn't be at all surprised if the safety requirements were minor and/or highly redundant. Personally, I'd rather we get decent air filters put on our coal-burning plants first. They're far more of a threat to our well-being.

    1. Re:Bah! by Fantastic+Lad · · Score: 4, Insightful
      Who are these anti-nuclear hippies, anyway? I've never met one.

      I have however, lived two hours away from a Canadian reactor which was mis-managed and unmaintained to the point where the thing was leaking radioactive water into the landscape. This was discovered in a big-scandal-stink, and the power company shortly after held a big public press-conference apologizing for their mistakes and promised transparency and honest ties to the community. Then a week later they were caught hiding another giant fault. The offending reactor went off-line shortly after.

      I can't speak for the (imaginary?) anti-nuclear hippies, but can certainly say that while I don't mis-trust the technology, I certainly mistrust the government and corporations responsible for handling it.


      -FL

    2. Re:Bah! by pedestrian+crossing · · Score: 2, Insightful

      If you want me to care about a specific instance of mis-management, I'm going to have to see some numbers first.

      Well, this particular case of (spectacular) mismanagement has nothing to do with radiation release, although this one does.

      My beef with nuclear isn't so much the environmental issues, it is the financial issues. Nuclear is becoming relatively safe, but for the complete life-cycle of the plant (dirt lot to dirt lot), it is extremely expensive.

      If you believe in open market solutions, nuclear just doesn't cut it. If you believe in -incredibly- huge subsidies, well...

      --
      A house divided against itself cannot stand.
    3. Re:Bah! by squiggleslash · · Score: 2, Insightful

      And you only say that because you've been brainwashed into thinking that nuclear power is more dangerous than fossil fuel power.

      Well, it is. Which leads to the somewhat major irony that its danger means it generally doesn't hurt or kill as many people, because we consider the importance of safety far more when dealing with Nuclear power than we do with more traditional means of power generation.

      Cars are relatively safe compared to airliners. They're on the ground, so if they fail they're not going to kill the passengers except in a highly limited set of circumstances. They lack complexity (well, compared to a 747 anyway) so there's less that can go wrong. A Jumbo Jet, by comparison, is a giant, complex, contraption with any number of things that can go wrong, that carries unbelievable amounts of fuel just waiting to explode, and with any number of structures and systems whose failure would result in an unflyable plane with only one direction it can go. Oh, and when a 747 dives into an ocean, that's 500 people dead. Not 4.

      The 747 has a better reliability record than any car because the 747's operators, handlers, builders, designers, and everyone else involved with the 747 respects the dangers involved. The plane endures far more inspections every week than an average car sees in a lifetime. The features of every subsystem is documented and well known to everyone involved in the plane's upkeep. Whereas a car will join a highway when a driver judges it to be safe, a 747 will not enter an airspace unless an entire team of people and computers has determined the air is clear, any one of which can veto a decision to enter that space.

      Nuclear power is much the same way. If it fails, it fails big-time. For the most part, engineers and operators of virtually every Nuclear power plant in the world takes safety far more seriously than any other type of plant. The ill-effects of Nuclear radiation are so much a matter of concern that preventing pollution is given a much higher priority than it would ever be at a coal plant.

      If we have equal budgets, and people of equal skills, and equal concern for safety, then I'd reluctantly take a coal plant over a nuclear plant any day of the week.

      --
      You are not alone. This is not normal. None of this is normal.