# Action spectrum for DNA damage

# Spectrum suggested by:
# R. B. Setlow, 
# "The wavelengths in sunlight effective in producing skin cancer: 
# a theoretical analysis", Proc. Nat. Acad. Sci., USA, 71 , No. 9, 
# pp. 3363-3366, 1974

# Figure 1 in the paper by Setlow was parameterized as follows.:

# A = 10 ^ (13.04679 + (W * -0.047012))	for 286 <= W <2 90
# A = 10 ^ (20.75595 + (W * -0.073595))	for 290 <= W < 295
# A = 10 ^ (30.12706 + (W * -0.105362))	for 295 <= W < 300
# A = 10 ^ (42.94028 + (W * -0.148073))	for 300 <= W < 305
# A = 10 ^ (45.24538 + (W * -0.15563))	for 305 <= W < 340

# Dose rates derived with this action spectrum are part of NSF UV database 3 and 
# are labeled "Setlow".

# Integration range: 286 - 340 nm

# The action spectrum suggested by Setlow describes the relative biological effect
# per quantum. For the parameterization given above and the values below it was 
# assumed that the the action spectrum describes the effect per energy unit.

286	3.9935E-01
287	3.5838E-01
288	3.2161E-01
289	2.8862E-01
290	2.5906E-01
291	2.1868E-01
292	1.8459E-01
293	1.5582E-01
294	1.3153E-01
295	1.1099E-01
296	8.7078E-02
297	6.8320E-02
298	5.3602E-02
299	4.2055E-02
300	3.2990E-02
301	2.3459E-02
302	1.6681E-02
303	1.1862E-02
304	8.4351E-03
305	6.0011E-03
306	4.1937E-03
307	2.9307E-03
308	2.0480E-03
309	1.4312E-03
310	1.0002E-03
311	6.9896E-04
312	4.8845E-04
313	3.4134E-04
314	2.3854E-04
315	1.6670E-04
316	1.1649E-04
317	8.1409E-05
318	5.6891E-05
319	3.9757E-05
320	2.7783E-05
321	1.9416E-05
322	1.3568E-05
323	9.4818E-06
324	6.6261E-06
325	4.6305E-06
326	3.2359E-06
327	2.2614E-06
328	1.5803E-06
329	1.1044E-06
330	7.7176E-07
331	5.3932E-07
332	3.7690E-07
333	2.6338E-07
334	1.8406E-07
335	1.2863E-07
336	8.9888E-08
337	6.2816E-08
338	4.3898E-08
339	3.0677E-08
340	2.1438E-08
340.01	1e-50